Topic
Friction stir processing
About: Friction stir processing is a research topic. Over the lifetime, 2977 publications have been published within this topic receiving 62158 citations.
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TL;DR: In this paper, the modification of a thermally sprayed cemented carbide (WC-CrC-Ni) layer by friction stir processing (FSP) was studied and the defects in the cemented carbers were removed and the hardness of the carbers increased to ∼ 1.5 times higher than that of the as-sprayed carbers.
Abstract: The modification of a thermally sprayed cemented carbide (WC–CrC–Ni) layer by friction stir processing (FSP) was studied. The cemented carbide layer was successfully modified using a sintered cemented carbide (WC–Co) tool. The defects in the cemented carbide layer disappeared and the hardness of the cemented carbide layer increased to ∼ 2000 HV, which was about 1.5 times higher than that of the as-sprayed cemented carbide layer. Additionally, the cemented carbide layer was bonded to the SKD61 (Nominal composition: 0.35–0.42 mass% C, 0.8–1.2 mass% Si, 0.25–0.5 mass% Mn, 4.8–5.5 mass% Cr, 1.0–1.5 mass% Mo, 0.8–1.2 mass% V, balance Fe) substrate by diffusion of the metallic elements and the distortion of the coating–substrate interface producing a mechanical interlocking effect.
49 citations
TL;DR: In this paper, an ultrasonic vibration setup has been designed and fabricated to make a comparative study between conventional frictions stir processing and ultrasonic assisted friction stir processing, and the effects of ultrasonic vibrations on rotational speeds as well as processing speeds are studied.
49 citations
TL;DR: In this paper, the effects of different reinforcement strategies and varying tool offset positions on dispersion of reinforcement particles in the base matrix are investigated, and the experiments were performed in two phases using AA6063 as base metal at constant process parameters.
Abstract: Fabrication of metal matrix surface composites (SCs) is an emerging trend of friction stir processing applications. Key factors affecting the properties of SCs are process parameters, tool geometry, tool dimensions and reinforcement strategies. In this research, effects of different reinforcement strategies and varying tool offset positions on dispersion of reinforcement particles in the base matrix are investigated. The experiments were performed in two phases using AA6063 as base metal at constant process parameters of 1120 rpm rotational speed, 40 mm/min traverse speed and 2.5° tilt angle. In the first phase, effect of six different reinforcement strategies on the reinforcement particles distribution and defect formation was studied. It was found that groove method with tool offset in retreating side (RS) exhibited better homogeneity in reinforcement distribution out of the six reinforcement strategies considered. In the second phase, effect of variation of tool offset in RS was investigated. R...
49 citations
TL;DR: In this paper, a hybrid nanocomposite of MWCNT-Graphene-AZ31 Mg alloy has been developed by using variable tool rotation speeds with friction stir processing (FSP).
49 citations
Patent•
23 May 2005
TL;DR: Solid state processing is performed on a workpiece that operates alone or is a component of equipment used in various demanding, harsh and wearing environments in which failure of a product could compromise safety or the environment or otherwise result in significant cost for repair or replacement as mentioned in this paper.
Abstract: Solid state processing is performed on a workpiece that operates alone or is a component of equipment used in various demanding, harsh and wearing environments in which failure of a product could compromise safety or the environment or otherwise result in significant cost for repair or replacement, wherein the solid state processing performed by using a tool capable of friction stir processing, friction stir mixing, or friction stir welding results in a workpiece that offers a longer life-cycle and/or improved performance and/or improved reliability as a result of the solid state processing.
49 citations